Altitude separation FAO - IanF
Altitude separation FAO - IanF
Whats the minimum height seperation needed between flights?
I was on a flight from LCY to EDI last night. Looking out the window another flight came from the east and passed directly overhead FAST! Flightradar shows less than 1000ft seperation. That normal?
I was on a flight from LCY to EDI last night. Looking out the window another flight came from the east and passed directly overhead FAST! Flightradar shows less than 1000ft seperation. That normal?
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Re: Altitude separation FAO - IanF
Can’t see the numbers on the vid. What was the height difference?
Middle-aged Dirtbag
Re: Altitude separation FAO - IanF
975 feetNotoriousREV wrote: ↑Thu Oct 31, 2019 9:57 am Can’t see the numbers on the vid. What was the height difference?
go right to the start of the video it shows the height then i click on the second plane and scroll to the height.
Re: Altitude separation FAO - IanF
Vid plays fuzzy at the start for me.
Supposed to be minimum 1000ft separation AFAIK. I use FlightRadar, but not sure how accurate it is.... would probably need proper ATC data to assess, but 975ft sounds about right.
Supposed to be minimum 1000ft separation AFAIK. I use FlightRadar, but not sure how accurate it is.... would probably need proper ATC data to assess, but 975ft sounds about right.
Re: Altitude separation FAO - IanF
I think 1000 feet is the minimum, but if one plane is above the 'standard' pressure switchover (sorry, I forget the name) and one below it then that could allow for a small discrepancy.
The artist formerly known as _Who_
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Re: Altitude separation FAO - IanF
I get what you’re doing but the numbers aren’t viewable on a mobile phone even full screenscotta wrote: ↑Thu Oct 31, 2019 10:03 am975 feetNotoriousREV wrote: ↑Thu Oct 31, 2019 9:57 am Can’t see the numbers on the vid. What was the height difference?
go right to the start of the video it shows the height then i click on the second plane and scroll to the height.
Middle-aged Dirtbag
Re: Altitude separation FAO - IanF
More importantly, did you get the pilot to do a 1000rpm to vMax in 3rd?
Re: Altitude separation FAO - IanF
Sent you a higher res one by special message!NotoriousREV wrote: ↑Thu Oct 31, 2019 10:19 amI get what you’re doing but the numbers aren’t viewable on a mobile phone even full screenscotta wrote: ↑Thu Oct 31, 2019 10:03 am975 feetNotoriousREV wrote: ↑Thu Oct 31, 2019 9:57 am Can’t see the numbers on the vid. What was the height difference?
go right to the start of the video it shows the height then i click on the second plane and scroll to the height.
Re: Altitude separation FAO - IanF
Re: Altitude separation FAO - IanF
If we get a reply, and then the news channels start reporting a plane crash, I blame you guys.
Re: Altitude separation FAO - IanF
Dont come on here with your bad altitude Beany.
Re: Altitude separation FAO - IanF
Maybe so close because a flight was delayed. Was your ride on time?
Re: Altitude separation FAO - IanF
I am not IanF nor do I play him on TV, but I do know that Reduced Vertical Separation Minima is 1000ft with suitably equipped aircraft.
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Re: Altitude separation FAO - IanF
1000ft between commercial aircraft sounds... close to me.
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Re: Altitude separation FAO - IanF
Would you propose a Cure?
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Re: Altitude separation FAO - IanF
Certainly wouldn’t be the Clash.
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Re: Altitude separation FAO - IanF
Few things affecting the separation- firstly for a more comfortable ride, the aircraft have a soft hold of their altitude and so fly +/- 50ft from their assigned level. Secondly the three separate air data sources on those aircraft have an acceptable variation of +/- 200ft at high altitudes. (Typically the difference is around 20-30ft). The transponder relates to a particular source on the flight deck which is not necessarily the same one as the autopilot is receiving its altitude info from. Finally, an aircraft hasn’t deviated from it’s assigned level until they are over 200ft away.
The aircraft have a system call tcas that monitors closure rates and prevents them getting too close and ATC have a predictive tool that highlights issues to them aswell.
Tl;dr.- 975ft is fine
The aircraft have a system call tcas that monitors closure rates and prevents them getting too close and ATC have a predictive tool that highlights issues to them aswell.
Tl;dr.- 975ft is fine
Cheers,
Ian
Ian
Re: Altitude separation FAO - IanF
[mention]IanF[/mention] TaIanF wrote: ↑Sat Nov 02, 2019 1:47 pm Few things affecting the separation- firstly for a more comfortable ride, the aircraft have a soft hold of their altitude and so fly +/- 50ft from their assigned level. Secondly the three separate air data sources on those aircraft have an acceptable variation of +/- 200ft at high altitudes. (Typically the difference is around 20-30ft). The transponder relates to a particular source on the flight deck which is not necessarily the same one as the autopilot is receiving its altitude info from. Finally, an aircraft hasn’t deviated from it’s assigned level until they are over 200ft away.
The aircraft have a system call tcas that monitors closure rates and prevents them getting too close and ATC have a predictive tool that highlights issues to them aswell.
Tl;dr.- 975ft is fine